Fire-extinguisher and other air-pressure liquid-ejecting vessel.



H. T..BLAKB. v FIRE EXTINGUISHER AND OTHER AIR PRESSURE LIQUID EJEGTING VESSEL.

. APPLICATION FILED MAR.15,1909. 931,255. Patented Aug. 17, 1909.

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UNITED STATES PATENT OFFICE.

HENRY THOMAS BLhKE, or Ross, ENGLAND.

FIRE-EXTINGUISEER AND'OTIBEB Specification of Letters Patent. Application filed March 15, 1909. Serial No. 488,659.

AIR-PRESSURE momn-nmc'rmo vnssrzn To all whom "it may concern:

Be it known that 1,; 'HENRY. THOMAS BLAKE, a citizen of Great Britain, and a resident of 44 Broad street, Ross, in the county of Hereford, England, have invented certain new and useful Improvements in Liquid-Ejecting Vessels, of which the fol The invention more particularly has for its object to render the charging of such vessels more convenient and also to enable the entire liquid contents of the vessel to be effectively discharged.

The features of novelty of'the invention, and the method of carrying same into effect will bejinore particularly set forth'in the.

description of the accompanying drawings and in the appended claims.

On the-drawings: Figure l. is an external elevation of liquid discharging vessel constructed in accordance with the invention.

"Pig. 2. is acomplete sectional elevation of same. Fig. 3. is an internal end view oftlie valve showing valve plunger seating. Fig. 4. is a similar view but showing the valve disk in place over the plunger seating. Figs. 5, 6, and 7. are details of 'the valve disk, locking ring and valve plunger. Fig. 8. is an internal view of the main body of. valve,

and Fig. 9 an external viewof suitable-cap.

. through the vessel are suitably sealed and the pipe acts as a strengthening stay to the ,vessel.

The entry to the pipe a from the interior of the vessel A is made by a curved pipe a whose extremity is closely adjacent to the lowest part of the vessel A formed by the convexity of the bottom a The inlet a through which water oriother chemical solution is charged into the vessel is arranged up the side of the vessel at a height to leave the relative proportions when fully charged of about it water space to air space. This is found when a working. pressure of 65 to 75 lbs. is employed, toallowfor the .complete discharge of the water-as an effective et or spray. At this inlet a a short .threadedsleeve a is secured and onto this the main body part 0 of an air valve C is' screwed. The screw thus serving for a cap over the water inlet-a," also serves as a 4 Patented A 17, 1509.

securing part of the'air inlet valve thus mak-- ing a compact fitting.

The valve is formed by a plunger 0 havin a pin Working in the 'inlet '0 in the threaded part 0* of the body. Thdplunger seats in a recess in the body part of the valve and the air pressure in the vessel forces the plunger tightly against its seat in the recess.

At thei back of the plunger the body 0 is faced to form a seat for a disk c; this disk covers the plunger recess and has perforations 0 out of alinement therewith as shown at Figs. 2 and 4.

Pressure of air through the water inlet- 0* forces back the plunger away from its seat and also eases the pressure of thedisk 05 so that the air passes through the perforations 0. Air pressurejn the vessel acts in the reverse way pressing the disk andplunger.

against their seats so that a double valve action is obtained. The valve disk '0 is secured'in place by a Washer 0 The vessel by this valve is adapted for charging by a cycle or like inflator and by the formation of the.

threaded parts 0 of the valve in the manner shown, the smaller part serves for making connection with the nipple of a cycle inflator and the second or larger part serves for a motor tire inflator.

The tap B made use of is of the known type in which" the pressure in the vessel assists the closing action of the tap. A plunger 6 is drawn up against its seating by a crank or eccentric connected with the spindle b of-a hand wheel or part 6 w This tap is convenient to operate, being quick in 7 its action and owing to the pressure closing the valve no leakage'occurs.

e drawing shows the discharge tap equipped with a nozzle Dsuitable fonfire i extinguishing purposes but for other purposes a rose or sprayer or similar .arrangement may be adopted.

This apparatus forms a simple and handy apparatus for use in outbreaks of fire or for tree spraying or similar uses; it is readily charged'vand re-charged without expense and will retain practically its fullpressure for some time when desired. What I claim then is F a 5 1. An apparatus of the class,. described comprising in combination, a vessel provided with a convex bottom projecting upwardl therein, a top1 for said vessel, a pipe exten' ing through t e top of said vessel, 'a fitting forming an outlet for said'pi e and connected therewith and with the vessel, means closing the lower end of said ipe and'rigidly securing it to the convex 0t tom causing said pipe to act as a strength- 'ening stay for said vessel, said fitting being provlded with an extension forming aninlet for said pipe and projecting to the lowest portion of said vessel, and means for chargmg said vessel.

do 2. An. apparatus of the class described comprisin 111 combination, a vessel pro" vided wit a top and bottom, a pipe fixed to the top of said vessel and provided with 'an outlet, means securing said pipe to the bottom of said vessel andprovided with an inlet communicating with said pipe and pro jecting to the lower portion of thevvessel, said pipe serving as a strengthening stay for said vessel, and a water inletand Valve at the side of said vessel located with regard to the dimensions thereof in a position to proportion the air and liquid space so as to insure effective discharge of all the liquid.

. Signed at Ross,'in the county of Hereford,

England, this 27th day of February, A. D. 3-5 1909.

THOMAS BLAKE.

Witnesses 7 THos. CooMBEs,

CHARLES J. BLAKE. 

